syzkaller login: [ 40.611765] sshd (218) used greatest stack depth: 24168 bytes left Warning: Permanently added '[localhost]:15823' (ECDSA) to the list of known hosts. 2023/05/18 02:38:22 fuzzer started 2023/05/18 02:38:22 dialing manager at localhost:44319 2023/05/18 02:38:22 checking machine... 2023/05/18 02:38:22 checking revisions... [ 42.104835] kmemleak: Automatic memory scanning thread ended 2023/05/18 02:38:22 testing simple program... [ 42.162349] cgroup: Unknown subsys name 'net' [ 42.227580] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 54.115478] audit: type=1400 audit(1684377514.756:6): avc: denied { execmem } for pid=258 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 55.244514] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 55.246779] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 55.248602] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 55.252366] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 55.254325] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 55.255496] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 55.532516] ------------[ cut here ]------------ [ 55.532901] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 55.534260] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.534837] Modules linked in: [ 55.535150] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 55.535769] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.539685] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.540351] Code: 89 d8 4c 8b 43 08 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 13 4c 89 e9 4c 89 fe 48 c7 c7 60 40 e2 84 e8 fa ff d4 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 55.541596] RSP: 0018:ffff88800cb8fc00 EFLAGS: 00010282 [ 55.541983] RAX: 0000000000000000 RBX: ffff8880090ab040 RCX: 0000000000000000 [ 55.542458] RDX: ffff888016f18000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 55.542973] RBP: ffff8880090ab054 R08: 0000000000000001 R09: 0000000000000000 [ 55.543475] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 55.544016] R13: ffffffff84e23fe0 R14: ffff8880090ab048 R15: ffffffff84d74dc0 [ 55.544524] FS: 000055555597d400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 55.545119] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.545543] CR2: 00007f62cda9a6f4 CR3: 000000000e3b0000 CR4: 0000000000350ef0 [ 55.546071] Call Trace: [ 55.546282] [ 55.546449] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 55.546964] ipv4_frags_init_net+0x269/0x440 [ 55.547400] ops_init+0xbb/0x6b0 [ 55.547749] setup_net+0x3d9/0x990 [ 55.548136] ? down_read_killable+0x1d7/0x4e0 [ 55.548580] ? __pfx_setup_net+0x10/0x10 [ 55.549015] ? copy_net_ns+0x17c/0x770 [ 55.549409] copy_net_ns+0x321/0x770 [ 55.549782] create_new_namespaces+0x3f6/0xb30 [ 55.550280] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.550763] ksys_unshare+0x44d/0x8e0 [ 55.551179] ? __pfx_ksys_unshare+0x10/0x10 [ 55.551599] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.552179] __x64_sys_unshare+0x31/0x40 [ 55.552582] do_syscall_64+0x3f/0x90 [ 55.552984] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.553494] RIP: 0033:0x7f7b979800d7 [ 55.553855] Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 55.555574] RSP: 002b:00007ffd3a538d28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 55.556312] RAX: ffffffffffffffda RBX: 00007ffd3a539368 RCX: 00007f7b979800d7 [ 55.557010] RDX: 00007f7b979ea41f RSI: 00007ffd3a538cc0 RDI: 0000000040000000 [ 55.557680] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd3a538ad0 [ 55.558384] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f7b97a92bf0 [ 55.558947] R13: 00007ffd3a538e00 R14: 0000000000000000 R15: 00000000000000f8 [ 55.559473] [ 55.559643] irq event stamp: 8199 [ 55.559910] hardirqs last enabled at (8211): [] __up_console_sem+0x78/0x80 [ 55.560516] hardirqs last disabled at (8220): [] __up_console_sem+0x5d/0x80 [ 55.561141] softirqs last enabled at (7978): [] irq_exit_rcu+0x93/0xc0 [ 55.561734] softirqs last disabled at (7973): [] irq_exit_rcu+0x93/0xc0 [ 55.562345] ---[ end trace 0000000000000000 ]--- [ 55.565802] ------------[ cut here ]------------ [ 55.566204] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 55.567152] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.567763] Modules linked in: [ 55.568027] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 55.568691] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.569307] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.569682] Code: 89 d8 4c 8b 43 08 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 13 4c 89 e9 4c 89 fe 48 c7 c7 60 40 e2 84 e8 fa ff d4 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 55.570974] RSP: 0018:ffff88800cb8fc00 EFLAGS: 00010282 [ 55.571354] RAX: 0000000000000000 RBX: ffff8880098a7c40 RCX: 0000000000000000 [ 55.571879] RDX: ffff888016f18000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 55.572387] RBP: ffff8880098a7c54 R08: 0000000000000001 R09: 0000000000000000 [ 55.572924] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 55.573433] R13: ffffffff84e23fe0 R14: ffff8880098a7c48 R15: ffffffff84da7d60 [ 55.573966] FS: 000055555597d400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 55.574549] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.574987] CR2: 00007f62cda9a6f4 CR3: 000000000e3b0000 CR4: 0000000000350ef0 [ 55.575493] Call Trace: [ 55.575685] [ 55.575882] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 55.576239] ipv6_frags_init_net+0x206/0x3c0 [ 55.576559] ops_init+0xbb/0x6b0 [ 55.576818] setup_net+0x3d9/0x990 [ 55.577103] ? down_read_killable+0x1d7/0x4e0 [ 55.577437] ? __pfx_setup_net+0x10/0x10 [ 55.577734] ? copy_net_ns+0x17c/0x770 [ 55.578052] copy_net_ns+0x321/0x770 [ 55.578357] create_new_namespaces+0x3f6/0xb30 [ 55.578701] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.579081] ksys_unshare+0x44d/0x8e0 [ 55.579372] ? __pfx_ksys_unshare+0x10/0x10 [ 55.579686] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.580122] __x64_sys_unshare+0x31/0x40 [ 55.580421] do_syscall_64+0x3f/0x90 [ 55.580701] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.581096] RIP: 0033:0x7f7b979800d7 [ 55.581366] Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 55.582652] RSP: 002b:00007ffd3a538d28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 55.583195] RAX: ffffffffffffffda RBX: 00007ffd3a539368 RCX: 00007f7b979800d7 [ 55.583696] RDX: 00007f7b979ea41f RSI: 00007ffd3a538cc0 RDI: 0000000040000000 [ 55.584214] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd3a538ad0 [ 55.584713] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f7b97a92bf0 [ 55.585230] R13: 00007ffd3a538e00 R14: 0000000000000000 R15: 00000000000000f8 [ 55.585747] [ 55.585944] irq event stamp: 10013 [ 55.586209] hardirqs last enabled at (10023): [] __up_console_sem+0x78/0x80 [ 55.586815] hardirqs last disabled at (10032): [] __up_console_sem+0x5d/0x80 [ 55.587445] softirqs last enabled at (9522): [] irq_exit_rcu+0x93/0xc0 [ 55.588044] softirqs last disabled at (9501): [] irq_exit_rcu+0x93/0xc0 [ 55.588614] ---[ end trace 0000000000000000 ]--- [ 55.589390] ------------[ cut here ]------------ [ 55.589727] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 55.590809] WARNING: CPU: 0 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 55.591444] Modules linked in: [ 55.591677] CPU: 0 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 55.592355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 55.592940] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 55.593322] Code: 89 d8 4c 8b 43 08 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 13 4c 89 e9 4c 89 fe 48 c7 c7 60 40 e2 84 e8 fa ff d4 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 55.594626] RSP: 0018:ffff88800cb8fbf0 EFLAGS: 00010286 [ 55.595028] RAX: 0000000000000000 RBX: ffff8880098a7040 RCX: 0000000000000000 [ 55.595528] RDX: ffff888016f18000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 55.596052] RBP: ffff8880098a7054 R08: 0000000000000001 R09: 0000000000000000 [ 55.596554] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 55.597073] R13: ffffffff84e23fe0 R14: ffff8880098a7048 R15: ffffffff84db0aa0 [ 55.597583] FS: 000055555597d400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 55.598171] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.598584] CR2: 00007f62cda9a6f4 CR3: 000000000e3b0000 CR4: 0000000000350ef0 [ 55.599109] Call Trace: [ 55.599295] [ 55.599467] nf_ct_net_init+0x224/0x3d0 [ 55.599764] ? __pfx_nf_ct_net_init+0x10/0x10 [ 55.600118] ops_init+0xbb/0x6b0 [ 55.600384] setup_net+0x3d9/0x990 [ 55.600646] ? down_read_killable+0x1d7/0x4e0 [ 55.600999] ? __pfx_setup_net+0x10/0x10 [ 55.601300] ? copy_net_ns+0x17c/0x770 [ 55.601596] copy_net_ns+0x321/0x770 [ 55.601902] create_new_namespaces+0x3f6/0xb30 [ 55.602251] unshare_nsproxy_namespaces+0xc1/0x200 [ 55.602612] ksys_unshare+0x44d/0x8e0 [ 55.602915] ? __pfx_ksys_unshare+0x10/0x10 [ 55.603231] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 55.603635] __x64_sys_unshare+0x31/0x40 [ 55.603953] do_syscall_64+0x3f/0x90 [ 55.604225] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 55.604597] RIP: 0033:0x7f7b979800d7 [ 55.604887] Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 55.606196] RSP: 002b:00007ffd3a538d28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 55.606728] RAX: ffffffffffffffda RBX: 00007ffd3a539368 RCX: 00007f7b979800d7 [ 55.607251] RDX: 00007f7b979ea41f RSI: 00007ffd3a538cc0 RDI: 0000000040000000 [ 55.607761] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd3a538ad0 [ 55.608284] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f7b97a92bf0 [ 55.608787] R13: 00007ffd3a538e00 R14: 0000000000000000 R15: 00000000000000f8 [ 55.609314] [ 55.609489] irq event stamp: 10727 [ 55.609741] hardirqs last enabled at (10737): [] __up_console_sem+0x78/0x80 [ 55.610378] hardirqs last disabled at (10748): [] __up_console_sem+0x5d/0x80 [ 55.610994] softirqs last enabled at (9522): [] irq_exit_rcu+0x93/0xc0 [ 55.611583] softirqs last disabled at (9501): [] irq_exit_rcu+0x93/0xc0 [ 55.612191] ---[ end trace 0000000000000000 ]--- executing program [ 57.321430] Bluetooth: hci0: command 0x0409 tx timeout [ 59.368942] Bluetooth: hci0: command 0x041b tx timeout executing program [ 61.416922] Bluetooth: hci0: command 0x040f tx timeout executing program [ 63.464950] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 02:38:29 Registers: info registers vcpu 0 RAX=0000000000000049 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88800cb8f618 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000049 R11=0000000000000001 R12=0000000000000049 R13=ffffffff87f2dbc0 R14=0000000000000010 R15=ffffffff82507f70 RIP=ffffffff82507fdd RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 000055555597d400 00000000 00000000 GS =0000 ffff88806ce00000 00000000 00000000 LDT=0000 fffffe0000000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f62cda9a6f4 CR3=000000000e3b0000 CR4=00350ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=0000000000000000000000000000ff00 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000046fdd RBX=0000000000000001 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffff888008dcfe70 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffff110011b9fd3 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844d199f RFL=00000206 [-----P-] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 0000000000000000 00000000 00000000 GS =0000 ffff88806cf00000 00000000 00000000 LDT=0000 fffffe0000000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007faa002e3d90 CR3=000000000e244000 CR4=00350ee0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=2036333a38333a32302038312079614d XMM01=5d3936373533352e35352020205b203a XMM02=435020647261646e61745320554d4551 XMM03=312e3120534f4942202c293639393120 XMM04=32312e3120534f4942202c2936393931 XMM05=20435020647261646e61745320554d45 XMM06=205d3936373533352e35352020205b20 XMM07=732036333a38333a3230203831207961 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000